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| 型号： | PFS763HG |
| 厂商： | POWER INTEGRATIONS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 4.16 A SWITCHING CONTROLLER, 70 kHz SWITCHING FREQ-MAX, PZIP16 |
| 封装： | HALOGEN FREE AND ROHS COMPLIANT, PLASTIC, SIP-16 |
| 文件页数： | 31/36页 |
| 文件大小： | 4692K |
| 代理商： | PFS763HG |
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Rev. C 02/11
4
TFS757-764HG
www.powerint.com
Table 2.
Summary of Differences Between HiperTFS and Other Typical High Power Supplies.
Function
Typical Two-Switch
Forward
HiperTFS
Advantages of HiperTFS
Nominal Duty Cycle
33%
45%
Wider duty cycle reduces RMS switch currents by 17%.
Reduces R
DS(ON) losses by 31%
Maximum Duty Cycle
<50%
63%
Switch Current (RMS)
100%
83%
Output Catch Diode
V
O + VD/DMAX
V
O + VD/DMAX
Lower losses. Wider D
MAX lowers catch diode rating by
(1-(50%/63%)) = 21% reduction in catch diode voltage
rating
Clamp Voltage
Reset diodes from zero
to V
IN
Reset from zero to
(V
IN + 130)
With fast/slow diode combination, allows charge
recovery to limit high-side C
OSS loss
Thermal Shutdown
---
118 °C Shutdown /
55 °C hysteresis
HiperTFS provides integrated OTP device protection
Current Sense Resistor
0.5 V drop (0.33 W at
300 W)
Sense resistor not
required
Improved efficiency. MOSFET R
DS(ON) sense eliminated
need for sense resistor
High-Side Drive
Requires gate-drive
transformer (high cost)
Built in high-side drive
Lower cost; component elimination. Removes
high-cost gate-drive transformer (EE10 or toroid)
Component Count
Higher
Lower
Saves up to 50 components, depending on specification.
TinySwitch Overload Power
Compensation vs. Input Voltage
---
Built-in compensation
Safer design; easier to design power supply. Flattens
overload output power over line voltages
Package Creepage
TO-220 = 1.17 mm
eSIP16/12 = 2.3 mm/
3.3 mm
HiperTFS meets functional safety spacing at package
pins
Package Assembly
2 × TO-220 package, 2
× SIL (insulation)
1 Package
No SIL (insulation) pad required
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PFS764HG | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Combined Two-Switch Forward and Flyback Power Supply Controllers with Integrated High Voltage MOSFETs |
| PFS7S 230/9V | 制造商:Aten International 功能描述:Bulk |
| PFS7S 230V/11 | 制造商:Aten International 功能描述: |
| PFS7S 230V/17V | 制造商:Aten International 功能描述: |
| PFS7S 230V/23 | 制造商:Aten International 功能描述: |
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